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68301954409646 = 2187721227857137
BaseRepresentation
bin11111000011110110010011…
…01110101110010010101110
322221211121021122021020121002
433201323021232232102232
532423024400312102041
6401133252405240302
720246440050201536
oct1741731156562256
9287747248236532
1068301954409646
111a8437726aa521
1277b1462403092
132c15b01175359
1412c1b919064c6
157d6a55a8159b
hex3e1ec9bae4ae

68301954409646 has 16 divisors (see below), whose sum is σ = 102512463664176. Its totient is φ = 34131134948736.

The previous prime is 68301954409609. The next prime is 68301954409679. The reversal of 68301954409646 is 64690445910386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79257590 + ... + 80114726.

It is an arithmetic number, because the mean of its divisors is an integer number (6407028979011).

Almost surely, 268301954409646 is an apocalyptic number.

68301954409646 is a deficient number, since it is larger than the sum of its proper divisors (34210509254530).

68301954409646 is a wasteful number, since it uses less digits than its factorization.

68301954409646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880243.

The product of its (nonzero) digits is 134369280, while the sum is 65.

The spelling of 68301954409646 in words is "sixty-eight trillion, three hundred one billion, nine hundred fifty-four million, four hundred nine thousand, six hundred forty-six".

Divisors: 1 2 1877 3754 21227 42454 857137 1714274 39843079 79686158 1608846149 3217692298 18194447099 36388894198 34150977204823 68301954409646